五虎山煤矿水力造穴增透物理模拟及钻孔优化设计OA北大核心CSTPCD
Physical simulation and drilling optimization design of hydraulic cavitation and permeability enhancement in Wuhushan Coal Mine
针对五虎山煤矿煤层透气性差、瓦斯吸附性强导致钻孔抽采效果差、抽采率低的问题,采用物理模拟和现场试验的方法,数值模拟水力造穴前后钻孔参数的变化特征,进而优化出适合该矿的瓦斯抽采钻孔布置方式.结果表明:五虎山煤矿 011006 工作面在符合矿上生产接续的情况下,水力造穴的最优钻孔造穴直径为 0.5 m,合理布设间距为 4 m;采用水力造穴工艺时瓦斯抽采体积分数平均为 70.4%,达普通钻孔平均体积分数的 3.8 倍,抽采纯量是普通钻孔的3.5 倍;采…查看全部>>
For the problems that poor gas permeability and strong gas adsorption in the coal seams of Wuhushan Coal Mine leads to poor drilling and extraction efficiency and low extraction rate,physical simulation and on-site testing methods were used to numeric-ally simulate the changes in drilling parameters before and after hydraulic drilling,and then optimize a suitable gas extraction drilling layout for the mine.The results show that under the condition that the 0…查看全部>>
谷保泽
国家能源集团乌海能源有限责任公司,内蒙古 乌海 016099
矿山工程
瓦斯抽采水力造穴水力冲孔钻孔优化煤层工艺参数
gas drainagehydraulic cavitationhydraulic punchingdrilling optimizationcoal seamprocess parameters
《煤矿安全》 2024 (7)
15-21,7
国家自然科学基金青年科学基金资助项目(51704101)
评论